Home / 3,098.20-4,643.70-1,248.40

Finding the Fourth Proportional to 3,098.20, 4,643.70 and 1,248.40

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Solution

The fourth proportional to 3,098.20, 4,643.70 and 1,248.40 is: 1,871.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.20 : 4,643.70 = 1,248.40 : x
  2. Step 2: Convert to fraction form
    3,098.20/4,643.70 = 1,248.40/x
  3. Step 3: Cross multiply
    3,098.20x = 4,643.70 × 1,248.40
  4. Step 4: Simplify right side
    3,098.20x = 5,797,195.08
  5. Step 5: Solve for x
    x = 5,797,195.08/3,098.20
  6. Step 6: Final answer
    x = 1,871.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.